Tewkesbury is a market town in Gloucestershire, 10 miles north of Gloucester. It is situated on the Avon near its confluence with the River Severn. Tewkesbury Abbey was founded in 715, later becoming one of the richest of Benedictine foundations in England. Of the abbey, only the gateway, part of the cloisters, and some other fragments remain. In 1471, Tewkesbury was the scene of the final defeat of the Lancastrians in the War of the Roses.